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Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1988 1
1989 16
1990 37
1991 36
1992 69
1993 72
1994 73
1995 91
1996 97
1997 47
1998 72
1999 49
2000 70
2001 68
2002 63
2003 102
2004 190
2005 250
2006 305
2007 275
2008 245
2009 279
2010 322
2011 369
2012 415
2013 400
2014 410
2015 415
2016 384
2017 353
2018 285
2019 266
2020 13
Text availability
Article attribute
Article type
Publication date

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5,288 results
Results by year
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